.app {
  width: 700px;
  min-height: 400px;
  margin: 100px auto;
  border: 1px solid #f1f2f2;
  box-shadow: 1px 1px 10px 1px #f1f2f2;
  padding: 20px;
}
.input {
  width: 80%;
  padding: 30px;
  border: 1px solid #f1f2f2;
  margin: 0 auto;
}
.user {
  width: 300px;
  height: 30px;
}
.button {
  width: 60px;
  height: 30px;
  font-size: 14px;
  color: #fff;
  background: #00aaee;
  border-radius: 5px;
  text-align: center;
  line-height: 30px;
  margin: 10px auto;
  cursor: pointer;
}
.text-wrap {
  margin-top: 20px;
  display: flex;
  align-items: top;
}
.comment {
  width: 300px;
  height: 150px;
}
.list-wrap {
  width: 80%;
  padding: 30px;
  border: 1px solid #f1f2f2;
  margin: 20px auto;
}
.list-item {
  display: flex;
  align-items: center;
  border: 1px solid #00aaee;
  padding: 20px;
  margin-bottom: 10px;
}
.list-figure {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #00aaee;
}
.list-username {
  color: #444;
  font-size: 14px;
  margin-right: 20px;
}
.list-content {
  color: #666;
  font-size: 14px;
}